#include "shoes.h"
#include <bits/stdc++.h>
struct SegmentTree {
int n;
std::vector<int> t;
SegmentTree(int _n) : n(_n), t(2 * n) {}
void update(int l, int r, int v) {
for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
if (l & 1) t[l] += v, l++;
if (r & 1) --r, t[r] += v;
}
}
int query(int p) {
int ans = 0;
for (p += n; p > 0; p >>= 1) {
ans += t[p];
}
return ans;
}
};
long long count_swaps(std::vector<int> s) {
int n = (int) s.size() / 2;
SegmentTree tree(2 * n);
for (int i = 0; i < 2 * n; i++) {
tree.update(i, i + 1, i);
}
std::map<int, std::vector<int>> mp;
std::set<std::pair<int, int>> st;
for (int i = 2 * n; i >= 0; i--) {
mp[s[i]].push_back(i);
st.insert({i, s[i]});
}
long long ans = 0;
for (int i = 0; i < n; i++) {
int f = 2 * i;
int v = st.begin()->second;
auto pos = mp[-v].back();
mp[-v].pop_back();
mp[v].pop_back();
int real_pos = tree.query(pos);
ans += real_pos - (f + (v < 0));
tree.update(0, pos, 1);
st.erase(st.begin());
st.erase({pos, s[pos]});
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
500 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
5 ms |
1628 KB |
Output is correct |
21 |
Correct |
6 ms |
1628 KB |
Output is correct |
22 |
Correct |
67 ms |
13740 KB |
Output is correct |
23 |
Correct |
66 ms |
13636 KB |
Output is correct |
24 |
Correct |
65 ms |
13636 KB |
Output is correct |
25 |
Correct |
59 ms |
13652 KB |
Output is correct |
26 |
Correct |
73 ms |
15008 KB |
Output is correct |
27 |
Correct |
59 ms |
14660 KB |
Output is correct |
28 |
Correct |
60 ms |
14976 KB |
Output is correct |
29 |
Correct |
61 ms |
14796 KB |
Output is correct |
30 |
Correct |
61 ms |
14796 KB |
Output is correct |
31 |
Correct |
64 ms |
14916 KB |
Output is correct |
32 |
Correct |
61 ms |
14792 KB |
Output is correct |
33 |
Correct |
73 ms |
14792 KB |
Output is correct |
34 |
Correct |
60 ms |
14776 KB |
Output is correct |
35 |
Correct |
0 ms |
344 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
61 ms |
15012 KB |
Output is correct |
38 |
Correct |
60 ms |
14764 KB |
Output is correct |
39 |
Correct |
60 ms |
14796 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
319 ms |
34860 KB |
Output is correct |
6 |
Correct |
122 ms |
15700 KB |
Output is correct |
7 |
Correct |
308 ms |
34864 KB |
Output is correct |
8 |
Correct |
68 ms |
13524 KB |
Output is correct |
9 |
Correct |
343 ms |
34644 KB |
Output is correct |
10 |
Correct |
190 ms |
23960 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
500 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
444 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
1 ms |
348 KB |
Output is correct |
41 |
Correct |
2 ms |
696 KB |
Output is correct |
42 |
Correct |
1 ms |
696 KB |
Output is correct |
43 |
Correct |
2 ms |
600 KB |
Output is correct |
44 |
Correct |
2 ms |
604 KB |
Output is correct |
45 |
Correct |
1 ms |
604 KB |
Output is correct |
46 |
Correct |
1 ms |
604 KB |
Output is correct |
47 |
Correct |
1 ms |
604 KB |
Output is correct |
48 |
Correct |
1 ms |
600 KB |
Output is correct |
49 |
Correct |
2 ms |
348 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
1 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
500 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
0 ms |
344 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
1 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
348 KB |
Output is correct |
53 |
Correct |
1 ms |
348 KB |
Output is correct |
54 |
Correct |
5 ms |
1628 KB |
Output is correct |
55 |
Correct |
6 ms |
1628 KB |
Output is correct |
56 |
Correct |
67 ms |
13740 KB |
Output is correct |
57 |
Correct |
66 ms |
13636 KB |
Output is correct |
58 |
Correct |
65 ms |
13636 KB |
Output is correct |
59 |
Correct |
59 ms |
13652 KB |
Output is correct |
60 |
Correct |
73 ms |
15008 KB |
Output is correct |
61 |
Correct |
59 ms |
14660 KB |
Output is correct |
62 |
Correct |
60 ms |
14976 KB |
Output is correct |
63 |
Correct |
61 ms |
14796 KB |
Output is correct |
64 |
Correct |
61 ms |
14796 KB |
Output is correct |
65 |
Correct |
64 ms |
14916 KB |
Output is correct |
66 |
Correct |
61 ms |
14792 KB |
Output is correct |
67 |
Correct |
73 ms |
14792 KB |
Output is correct |
68 |
Correct |
60 ms |
14776 KB |
Output is correct |
69 |
Correct |
0 ms |
344 KB |
Output is correct |
70 |
Correct |
0 ms |
348 KB |
Output is correct |
71 |
Correct |
61 ms |
15012 KB |
Output is correct |
72 |
Correct |
60 ms |
14764 KB |
Output is correct |
73 |
Correct |
60 ms |
14796 KB |
Output is correct |
74 |
Correct |
0 ms |
348 KB |
Output is correct |
75 |
Correct |
0 ms |
348 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
0 ms |
348 KB |
Output is correct |
78 |
Correct |
319 ms |
34860 KB |
Output is correct |
79 |
Correct |
122 ms |
15700 KB |
Output is correct |
80 |
Correct |
308 ms |
34864 KB |
Output is correct |
81 |
Correct |
68 ms |
13524 KB |
Output is correct |
82 |
Correct |
343 ms |
34644 KB |
Output is correct |
83 |
Correct |
190 ms |
23960 KB |
Output is correct |
84 |
Correct |
1 ms |
348 KB |
Output is correct |
85 |
Correct |
0 ms |
444 KB |
Output is correct |
86 |
Correct |
0 ms |
348 KB |
Output is correct |
87 |
Correct |
1 ms |
348 KB |
Output is correct |
88 |
Correct |
2 ms |
696 KB |
Output is correct |
89 |
Correct |
1 ms |
696 KB |
Output is correct |
90 |
Correct |
2 ms |
600 KB |
Output is correct |
91 |
Correct |
2 ms |
604 KB |
Output is correct |
92 |
Correct |
1 ms |
604 KB |
Output is correct |
93 |
Correct |
1 ms |
604 KB |
Output is correct |
94 |
Correct |
1 ms |
604 KB |
Output is correct |
95 |
Correct |
1 ms |
600 KB |
Output is correct |
96 |
Correct |
2 ms |
348 KB |
Output is correct |
97 |
Correct |
1 ms |
348 KB |
Output is correct |
98 |
Correct |
1 ms |
348 KB |
Output is correct |
99 |
Correct |
1 ms |
604 KB |
Output is correct |
100 |
Correct |
2 ms |
600 KB |
Output is correct |
101 |
Correct |
16 ms |
3676 KB |
Output is correct |
102 |
Correct |
12 ms |
2140 KB |
Output is correct |
103 |
Correct |
443 ms |
36112 KB |
Output is correct |
104 |
Correct |
304 ms |
36108 KB |
Output is correct |
105 |
Correct |
267 ms |
26704 KB |
Output is correct |
106 |
Correct |
325 ms |
36156 KB |
Output is correct |
107 |
Correct |
135 ms |
17440 KB |
Output is correct |
108 |
Correct |
131 ms |
19516 KB |
Output is correct |
109 |
Correct |
65 ms |
14792 KB |
Output is correct |
110 |
Correct |
61 ms |
14796 KB |
Output is correct |
111 |
Correct |
288 ms |
33876 KB |
Output is correct |
112 |
Correct |
298 ms |
31240 KB |
Output is correct |
113 |
Correct |
150 ms |
17724 KB |
Output is correct |
114 |
Correct |
285 ms |
36104 KB |
Output is correct |
115 |
Correct |
335 ms |
36268 KB |
Output is correct |